<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
html {
  -webkit-writing-mode: vertical-rl;
  writing-mode: vertical-rl;
  font: 16px/24px monospace;
  padding: 20px;
}
body {
  width: 40em;
  height: 25em;
}
blockquote {
  -webkit-writing-mode: horizontal-tb;
  writing-mode: horizontal-tb;
  width: 20em;
  color: transparent;
}
</style>
</head>

<body>
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed ac fringilla quam,
  eu ultricies augue.</p>

  <blockquote>
    <!-- The (invisible) text in the orthogonal block should NOT make following
         content vanish if it overflows the <body>'s height! -->
    <p>Ut accumsan dui eu elit dapibus rutrum. Nunc tristique urna eget ex dictum
    placerat. Nunc venenatis enim sed odio iaculis, consequat consectetur sem
    elementum.</p>

    <p>Fusce eros eros, eleifend eget eros at, convallis tempor tortor. Cras
    at gravida leo. Proin ultricies ipsum vitae felis suscipit, a tincidunt orci
    mattis. Cras in suscipit mauris.</p>

    <p>Etiam eu pellentesque nisi. Quisque
    ullamcorper dui odio, eu feugiat nunc interdum vitae. Morbi egestas dolor a
    nulla pellentesque, faucibus tincidunt diam facilisis. Suspendisse at urna
    varius, pellentesque nibh non, venenatis ante.</p>

    <p>Nullam aliquet orci vel dui
    dapibus, nec facilisis enim interdum. Morbi condimentum venenatis commodo. Sed
    viverra diam nec lacinia congue. Etiam ultrices luctus volutpat.</p>
  </blockquote>

  <p>Maecenas nec ornare ligula. Phasellus eleifend
  elit leo, nec vestibulum sapien consectetur quis.</p>
</body>
</html>
